I thought because El Presidente's bus is always leaning over at the bus barn that Jon wanted him to do some Preventive Maintenance = PM.
Loc - 2008 Marathon XLII - Houston
PM in that context meant private message. The Pres did not have his email listed so I sent him a PM (private message) that he has thus far ignored. I can tell I am not wanted.
PM can be pre-menstrual, post meridian, prime minister, post mortem, or even Papa Murphy.
Post Menapausal?